Fan air bellow, fan assembly and heat pump water heater

Abstract

The embodiment of the utility model provides a draught fan air bellow, a draught fan assembly and a heat pump water heater, the draught fan air bellow is of an integrated structure, and the draught fan air bellow comprises a box body and an air guide structure; the box body is provided with an air duct, an air inlet and an air outlet, the air guide structure is arranged on the outer side of the air outlet and comprises a first air guide plate and a second air guide plate, and the first air guide plate and the second air guide plate are located on the two opposite sides of the air outlet in the height direction of the box body correspondingly. According to the fan bellow, the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a fan bellows, a fan assembly and a heat pump water heater. Background Art

[0002] In the related art, the bellows of the fan assembly installed on the heat pump water heater is generally composed of a plurality of plates and other parts. The number of parts is large, and the plates are fixed with screws. The number of screws is large, the assembly is complicated, and the production efficiency is low. Utility Model Content

[0003] In view of this, the embodiments of the present application hope to provide a fan bellows, a fan assembly and a heat pump water heater that can improve production efficiency.

[0004] To achieve the above object, an embodiment of the present application provides a fan bellows, wherein the fan bellows is an integrated structure and comprises:

[0005] A box body, the box body having an air duct and an air inlet and an air outlet respectively connected to the air duct;

[0006] An air guide structure is arranged outside the air outlet, and the air guide structure includes a first air guide plate and a second air guide plate, and the first air guide plate and the second air guide plate are respectively located on opposite sides of the air outlet along the height direction of the box body.

[0007] In one embodiment, the box body includes a panel, a bottom plate, a top plate and two side plates, the panel has the air outlet, the two side plates are located on opposite sides of the panel along a lateral direction perpendicular to the height direction, the bottom plate is located on the bottom side of the panel, the top plate is located on the top side of the panel, and the bottom plate, the top plate and the two side plates jointly enclose the air duct.

[0008] In one embodiment, the bottom plate, the top plate and the two side plates are bent toward the same side of the panel, and the bottom plate and the top plate are welded to the two side plates.

[0009] In one embodiment, the two side panels have a first flange folded toward the bottom panel, and the first flange abuts against an outer surface of the bottom panel and is welded to the bottom panel.

[0010] In one embodiment, the two side plates have second flanges folded toward the top plate, and the second flanges abut against the outer surface of the top plate and are welded to the bottom plate.

[0011] In one embodiment, an edge of the panel located on the top side of the air outlet is folded toward the outside of the air outlet to form the first air guide plate.

[0012] In one embodiment, an edge of the panel located at the bottom side of the air outlet is folded toward the outside of the air outlet to form the second air guide plate.

[0013] In one embodiment, at least one of the two side panels has a first fixing edge which is folded in a direction away from the air duct and has a first fastening hole.

[0014] In one embodiment, the bottom of the box body has a mounting boss protruding into the air duct and a drainage groove located around the mounting boss.

[0015] In one embodiment, the drainage groove is located at least between the mounting boss and the second air guide plate, and at least a portion of the second air guide plate is inclined upward from a side close to the air outlet to a side away from the air outlet, so that the inclined portion forms a water guiding structure connected to the drainage groove.

[0016] In one embodiment, a partial area of ​​the water guide structure close to one side of the first wind guide plate is recessed to form a water guide groove connected to the drainage groove.

[0017] In one embodiment, the drainage groove includes a first section and a second section having a drainage port, the first section is located between the mounting boss and the second air guide plate, and the mounting boss has the second section on at least one of the two opposite sides in a lateral direction perpendicular to the height direction.

[0018] In one embodiment, a partial area of ​​the mounting boss protrudes into the air duct to form a motor mounting platform.

[0019] Another embodiment of the present application provides a fan assembly, including: a motor bracket, a drive motor, an impeller, an air guide ring, and the fan bellows described above;

[0020] The motor bracket, the drive motor, the impeller and the air guide ring are all arranged in the air duct, the motor bracket is located on the side of the air guide ring away from the air outlet, the drive motor is arranged on the motor bracket, the impeller is driven and connected to the drive motor, and at least a partial area of ​​the impeller is located in the air guide ring.

[0021] In one embodiment, one of the air guide ring and the box body has a first positioning portion, and the other has a second positioning portion, and the first positioning portion is snap-fitted or plug-fitted with the second positioning portion.

[0022] Yet another embodiment of the present application provides a heat pump water heater, comprising: the fan assembly described above.

[0023] The embodiments of the present application provide a fan bellows, a fan assembly and a heat pump water heater. The fan bellows adopts an integrated structure, which can reduce the number of parts and save the time for splicing and fixing the parts. This can facilitate production and assembly, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A partial structural schematic diagram of a head of a heat pump water heater according to an embodiment of the present application;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the nose from another perspective shown;

[0026] Figure 3 for Figure 2 An exploded view of the fan assembly is shown;

[0027] Figure 4 for Figure 3 The structural schematic diagram of the fan bellows shown;

[0028] Figure 5 for Figure 4 A-direction view;

[0029] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0030] Figure 7 for Figure 2 The schematic diagram of the assembly relationship between the air guide ring and the fan bellows shown;

[0031] Figure 8 for Figure 4 CC section view of the fan bellows shown.

[0032] Description of Reference Numerals

[0033] 10. fan assembly; 11. motor bracket; 12. drive motor; 13. impeller; 14. air guide ring; 14a. first positioning part; 15. fan bellows; 151. box body; 151a. air duct; 151b. air outlet; 151c. mounting boss; 151d. drain groove; 151d1. first section; 151d2. second section; 151d2a. drain outlet; 151e. motor mounting platform; 151f. second positioning part; 1511. panel ; 1512, bottom plate; 1513, top plate; 1514, side plate; 15141, first part; 15142, second part; 1514a, first flange; 1514b, second flange; 1514c, first fixed edge; 152, air guide structure; 1521, first air guide plate; 1522, second air guide plate; 15221, water guide structure; 15221a, water guide groove; 15222, second fixed edge; 20, casing; 30, heat exchanger. DETAILED DESCRIPTION

[0034] In the description of the embodiments of the present application, it should be noted that the terms "height", "top", "bottom" and the like indicate positions or location relationships based on the attached Figure 4 The orientation or position relationship shown, where "up" is Figure 4 The top direction of Figure 4 These directional terms are only used to facilitate the description of the embodiments of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0035] The present application embodiment provides a fan assembly 10, see Figures 1 to 3 The fan assembly 10 includes a motor bracket 11, a driving motor 12, an impeller 13, an air guide ring 14 and a fan bellows 15.

[0036] See also Figure 3 and Figure 4 The fan bellows 15 of the embodiment of the present application is an integrated structure, and the fan bellows 15 includes a box body 151 and an air guide structure 152.

[0037] The box body 151 has an air duct 151a and an air inlet (not shown) and an air outlet 151b respectively connected to the air duct 151a. The air guide structure 152 is arranged outside the air outlet 151b, and the air guide structure 152 includes a first air guide plate 1521 and a second air guide plate 1522, which are respectively located on opposite sides of the air outlet 151b along the height direction of the box body 151.

[0038] Specifically, the integrated structure means that the entire fan bellows 15 is composed of a single, inseparable part, rather than being assembled from at least two parts. Exemplarily, the fan bellows 15 can be formed by bending a metal plate. For example, the fan bellows 15 can be a sheet metal part. Exemplarily, the fan bellows 15 can also be integrally formed by injection molding, vacuum molding, etc.

[0039] The air duct 151a is a passage for air flow to pass through, that is, the air flow enters the air duct 151a from the air inlet and then flows out from the air outlet 151b.

[0040] For example, see Figure 4 The air inlet and the air outlet 151b may be located on opposite sides of the air duct 151a.

[0041] The first air guide plate 1521 and the second air guide plate 1522 are both used to guide the airflow flowing out of the air outlet 151 b.

[0042] Please continue reading Figure 3 The motor bracket 11, the drive motor 12, the impeller 13 and the air guide ring 14 are all arranged in the air duct 151a. The motor bracket 11 is located on the side of the air guide ring 14 away from the air outlet 151b. The drive motor 12 is arranged on the motor bracket 11. The impeller 13 is drivingly connected to the drive motor 12, and at least a part of the impeller 13 is located in the air guide ring 14.

[0043] Specifically, the driving motor 12 drives the impeller 13 to rotate, so that the airflow enters the air duct 151a from the air inlet, passes through the air guide ring 14, and then flows out from the air outlet 151b.

[0044] Another embodiment of the present application provides a heat pump water heater. Figure 1 and Figure 2 The heat pump water heater includes the fan assembly 10 provided in any embodiment of the present application.

[0045] Specifically, the heat pump water heater has a head, which includes a casing 20, a heat exchanger 30 and a fan assembly 10. The heat exchanger 30 and the fan assembly 10 are arranged in the casing 20. The heat exchanger 30 is located upstream of the fan assembly 10 along the air flow direction. The heat exchanger 30 can be connected to the fan bellows 15. After the airflow exchanges heat at the heat exchanger 30, it enters the air duct 151a from the air inlet.

[0046] It should be noted that the fan assembly 10 described in the embodiment of the present application is not limited to being used in heat pump water heaters, and the fan assembly 10 can also be used in other electrical equipment.

[0047] The fan bellows 15 of the embodiment of the present application can reduce the number of parts and components by adopting an integrated structure, thereby saving the time for splicing and fixing the parts, thereby facilitating production and assembly, and further improving production efficiency.

[0048] In one embodiment, please refer to Figure 4 and Figure 2 The box body 151 may include a panel 1511, a bottom plate 1512, a top plate 1513 and two side plates 1514. The panel 1511 has an air outlet 151b. The two side plates 1514 are located on opposite sides of the panel 1511 along a lateral direction perpendicular to the height direction. The bottom plate 1512 is located on the bottom side of the panel 1511, and the top plate 1513 is located on the top side of the panel 1511. The bottom plate 1512, the top plate 1513 and the two side plates 1514 jointly enclose an air outlet duct 151a.

[0049] For example, see Figure 1 , Figure 4 and Figure 5 The bottom plate 1512, the top plate 1513 and the two side plates 1514 can be bent toward the same side of the panel 1511, and the bottom plate 1512 and the top plate 1513 are welded to the two side plates 1514. That is to say, the box body 151 having the bottom plate 1512, the top plate 1513 and the two side plates 1514 can be formed by bending a piece of metal plate. After the bottom plate 1512, the top plate 1513 and the two side plates 1514 are bent toward the same side of the panel 1511, the bottom plate 1512 and the two side plates 1514 are connected together by welding, and the top plate 1513 and the two side plates 1514 are also connected together by welding.

[0050] Figure 4 The two side panels 1514 shown are bent twice respectively, that is, each side panel 1514 has a first portion 15141 connected to the panel 1511 and a second portion 15142 located on the side of the first portion 15141 away from the panel 1511. In other embodiments, each side panel 1514 may be bent only once or more than twice. In addition, the number of bending times of the two side panels 1514 may be the same or different.

[0051] Figure 4 The bottom plate 1512 and the top plate 1513 are shown to be bent once respectively. In other embodiments, at least one of the bottom plate 1512 and the top plate 1513 may also be bent multiple times.

[0052] See also Figure 4 and Figure 5The two side panels 1514 may have a first flange 1514a folded toward the bottom panel 1512, the first flange 1514a abuts against the outer surface of the bottom panel 1512, and is welded to the bottom panel 1512. The first flange 1514a can not only cover the seam between the bottom panel 1512 and the side panels 1514, but also facilitate welding of the bottom panel 1512 and the side panels 1514.

[0053] In some other embodiments, the bottom plate 1512 may have a flange folded toward the side plate 1514 , and the flange rests against the outer surface of the side plate 1514 and is welded to the side plate 1514 .

[0054] See also Figure 1 and Figure 4 The two side panels 1514 may also have second flanges 1514b folded toward the top panel 1513, the second flanges 1514b abut against the outer surface of the top panel 1513, and are welded to the top panel 1513. The second flanges 1514b can not only cover the seam between the top panel 1513 and the side panels 1514, but also facilitate welding of the top panel 1513 and the side panels 1514.

[0055] In some other embodiments, the top plate 1513 may have a flange folded toward the side plate 1514 , and the flange rests against the outer surface of the side plate 1514 and is welded to the side plate 1514 .

[0056] For example, see Figure 4 , the edge of the panel 1511 located at the top side of the air outlet 151b can be folded toward the outside of the air outlet 151b to form the first air guide plate 1521, that is, a partial area of ​​the panel 1511 can form the first air guide plate 1521. In other embodiments, the edge of the top plate 1513 near the air outlet 151b can also be folded to form the first air guide plate 1521.

[0057] For example, see Figure 4 and Figure 6 , the edge of the panel 1511 located at the bottom side of the air outlet 151b can also be folded toward the outside of the air outlet 151b to form the second air guide plate 1522, that is, a partial area of ​​the panel 1511 can form the second air guide plate 1522. In other embodiments, the edge of the bottom plate 1512 near the air outlet 151b can also be folded to form the second air guide plate 1522.

[0058] For example, see Figure 4 and Figure 5The two side panels 1514 may also have a first fixing edge 1514c that is folded away from the air duct 151a and has a first fastening hole. The first fastening hole is used to pass fasteners such as screws and bolts when installing the fan assembly 10. For example, the first fixing edge 1514c can be fastened to the housing 20 of the head through fasteners such as screws and bolts passed through the first fastening hole.

[0059] Figure 4 and Figure 5 The first fixed edge 1514 c shown is located at the bottom side of the side plate 1514 . In other embodiments, the first fixed edge 1514 c may also be located at other sides of the side plate 1514 .

[0060] In some other embodiments, only one side plate 1514 may have the first fixed edge 1514c, while the other side plate 1514 may have the first fixed edge 1514c.

[0061] Also, see Figure 4 and Figure 6 The second air guide plate 1522 may also have a second fixing edge 15222 that is folded downward and has a second fastening hole on the side away from the air outlet 151b. The second fastening hole is also used to insert fasteners such as screws and bolts when installing the fan assembly 10.

[0062] In one embodiment, please refer to Figure 8 The bottom of the box body 151 has a mounting boss 151c protruding into the air duct 151a and a drainage groove 151d located on the side of the mounting boss 151c.

[0063] Specifically, the drain groove 151d is used to drain the condensed water in the air duct 151a. Taking the heat pump water heater as an example, a water receiving tray is generally provided at the bottom of the housing 20 of the head, and the drain groove 151d can be connected to the water receiving tray, that is, the condensed water in the drain groove 151d can be discharged into the water receiving tray.

[0064] The mounting boss 151c is used to mount components such as the motor bracket 11 of the fan assembly 10. The drainage groove 151d is located around the mounting boss 151c. Condensation water generated or dripping on the mounting boss 151c can flow into the drainage groove 151d along the mounting boss 151c.

[0065] For the box 151 with the bottom plate 1512, illustratively, see Figure 8 , the mounting boss 151c and the drainage groove 151d can be set on the bottom plate 1512.

[0066] By providing the mounting boss 151c and the drainage groove 151d, the drainage and waterproof capabilities of the fan bellows 15 can be improved.

[0067] in addition, Figure 8Part of the mounting boss 151c shown protrudes into the air duct 151a to form a motor mounting platform 151e, and the motor bracket 11 is mounted on the motor mounting platform 151e. The motor mounting platform 151e can play a certain role in blocking water to prevent condensed water on the mounting boss 151c from flowing toward the motor bracket 11. In other embodiments, there may be no motor mounting platform 151e on the mounting boss 151c.

[0068] In one embodiment, please refer to Figure 6 and Figure 8 The drainage groove 151d can be located at least between the mounting boss 151c and the second air guide plate 1522, and at least a portion of the second air guide plate 1522 is inclined upward from a side close to the air outlet 151b to a side away from the air outlet 151b, so that the inclined portion forms a water guide structure 15221 connected to the drainage groove 151d.

[0069] The purpose of forming a water guiding structure 15221 on the second air guide plate 1522 that is connected to the drainage groove 151d is that the condensed water generated on the second air guide plate 1522, or the condensed water dripping from the first air guide plate 1521 to the second air guide plate 1522 can be discharged into the drainage groove 151d through the water guiding structure 15221, which is equivalent to the second air guide plate 1522 having the functions of guiding both air and water.

[0070] Figure 8 The drainage groove 151d shown includes a first section 151d1 and two second sections 151d2 with drainage ports 151d2a. The first section 151d1 is located between the mounting boss 151c and the second air guide plate 1522. The two second sections 151d2 are respectively located on opposite sides of the mounting boss 151c in the horizontal direction and are both connected to the first section 151d1. That is to say, the condensed water in the drainage groove 151d can be discharged from the two second sections 151d2 respectively to improve the drainage capacity of the drainage groove 151d.

[0071] In other embodiments, the drain groove 151d may also have a first section 151d1 and a second section 151d2, or the drain groove 151d may only have the first section 151d1 without the second section 151d2, that is, the condensed water in the drain groove 151d may be directly discharged from the first section 151d1.

[0072] The inclination angle of the water guide structure 15221 can be set as needed. For example, see Figure 6 The angle θ between the water guiding structure 15221 and the horizontal plane P can be 3° to 6°, where the horizontal plane refers to a plane perpendicular to the height direction. This angle range can meet the requirements of both wind and water guiding.

[0073] Preferably, the angle θ between the water guiding structure 15221 and the horizontal plane P may be 5°.

[0074] By providing a water guide structure 15221 on the second air guide plate 1522, the waterproof effect of the fan bellows 15 can be further improved.

[0075] For further information, see Figure 8 The water guide structure 15221 may be partially recessed near the first air guide plate 1521 to form a water guide groove 15221a connected to the drainage groove 151d. The water guide groove 15221a may receive condensed water on the second air guide plate 1522 so as to better guide the condensed water into the drainage groove 151d.

[0076] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 7 The air guide ring 14 may be provided with a first positioning portion 14a, and the box body 151 may be provided with a second positioning portion 151f. Figure 7 The first positioning portion 14a and the second positioning portion 151f are engaged with each other through snap-fitting to pre-position the air guide ring 14, thereby facilitating the installation of the air guide ring 14.

[0077] In some other embodiments, the first positioning portion 14a and the second positioning portion 151f may also be plug-fitted.

[0078] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0079] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A fan bellows, characterized in that: The fan bellows is an integrated structure, and the fan bellows comprises: A box body, the box body having an air duct and an air inlet and an air outlet respectively connected to the air duct; An air guide structure is arranged outside the air outlet, and the air guide structure includes a first air guide plate and a second air guide plate, and the first air guide plate and the second air guide plate are respectively located on opposite sides of the air outlet along the height direction of the box body.

2. The fan bellows according to claim 1, characterized in that: The box body includes a panel, a bottom plate, a top plate and two side plates, the panel has the air outlet, the two side plates are located on opposite sides of the panel along a lateral direction perpendicular to the height direction, the bottom plate is located on the bottom side of the panel, the top plate is located on the top side of the panel, and the bottom plate, the top plate and the two side plates jointly enclose the air duct.

3. The fan bellows according to claim 2, characterized in that: The bottom plate, the top plate and the two side plates are bent toward the same side of the panel, and the bottom plate and the top plate are welded to the two side plates.

4. The fan bellows according to claim 3, characterized in that: The two side panels have first flanges folded toward the bottom panel, the first flanges abut against the outer surface of the bottom panel and are welded to the bottom panel; and / or, The two side plates have second flanges folded toward the top plate, the second flanges abut against the outer surface of the top plate and are welded to the bottom plate.

5. The fan bellows according to any one of claims 2 to 4, characterized in that: The edge of the panel located at the top side of the air outlet is folded toward the outside of the air outlet to form the first air guide plate; and / or, The edge of the panel located at the bottom side of the air outlet is folded toward the outside of the air outlet to form the second air guide plate.

6. The fan bellows according to any one of claims 2 to 4, characterized in that: At least one of the two side panels has a first fixing edge which is folded in a direction away from the air duct and has a first fastening hole.

7. The fan bellows according to any one of claims 1 to 4, characterized in that: The bottom of the box body is provided with a mounting boss protruding into the air duct and a drainage groove located on the periphery of the mounting boss.

8. The fan bellows according to claim 7, characterized in that: The drainage groove is at least located between the mounting boss and the second air guide plate, and at least a portion of the second air guide plate is inclined upward from a side close to the air outlet to a side away from the air outlet, so that the inclined portion forms a water guide structure connected to the drainage groove.

9. The fan bellows according to claim 8, characterized in that: A partial area of ​​the water guide structure close to one side of the first wind guide plate is recessed to form a water guide groove connected to the drainage groove; and / or, The drainage groove includes a first section and a second section with a drainage port, the first section is located between the mounting boss and the second air guide plate, and the mounting boss has the second section on at least one of two opposite sides in a lateral direction perpendicular to the height direction.

10. The fan bellows according to claim 7, characterized in that: A partial area of ​​the mounting boss protrudes into the air duct to form a motor mounting platform.

11. A fan assembly, characterized in that: include: A motor bracket, a driving motor, an impeller, an air guide ring, and a fan bellows as described in any one of claims 1 to 10; The motor bracket, the drive motor, the impeller and the air guide ring are all arranged in the air duct, the motor bracket is located on the side of the air guide ring away from the air outlet, the drive motor is arranged on the motor bracket, the impeller is driven and connected to the drive motor, and at least a partial area of ​​the impeller is located in the air guide ring.

12. The fan assembly according to claim 11, characterized in that: One of the air guide ring and the box body has a first positioning portion, and the other has a second positioning portion, and the first positioning portion is engaged with or plug-in-engaged with the second positioning portion.

13. A heat pump water heater, characterized in that: include: The fan assembly according to claim 11 or 12.

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